Sony CDX-MP40 service manual IC801 MN101C49KSJ System Control Main Board

Page 18

CDX-MP40

• IC801 MN101C49KSJ (SYSTEM CONTROL) (MAIN BOARD)

Pin No.

 

Pin Name

I/O

Pin Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

VREF–

—

Power supply pin for A/D converter

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

VSM

I

S-meter voltage detection signal input from the tuner unit (TU601)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

NIL

I

Not used. (Connected to ground.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

KEYIN1

I

Key signal input

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

KEYIN0

I

Key signal input

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

RC_IN0

I

Rotary commander key signal input from the remote-in jack

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

QUALITY

I

Noise detection signal input (AEP, UK model)/Connected to ground. (US, Canadian model)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

 

DST SEL

I

Destination setting pin (US, Canadian model)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

 

 

 

 

 

NIL

I

Not used. (Connected to ground.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

 

 

VREF+

—

Power supply pin for A/D converter

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11

 

 

 

 

 

VDD

—

Power supply pin

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

 

OSCOUT

O

High speed clock output (18.43 MHz)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13

 

 

 

 

 

OSCIN

I

High speed clock input (18.43 MHz)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14

 

 

 

 

 

VSS

—

Ground pin

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

 

 

 

 

 

XIN

I

Low speed clock input (32.768 kHz)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

 

 

 

 

 

XOUT

O

Low speed clock output (32.768 kHz)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

17

 

 

 

MMOD

—

Memory mode selection input “L”: single chip mode (connected to ground)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18

 

 

 

LCDSO

O

Serial data output to the LCD driver

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

19

 

 

 

LCDCE

O

Chip enable signal output to the LCD driver

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

 

LCDCKO

O

Serial clock output to the LCD driver

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

21 – 23

 

 

 

 

 

NCO

O

Not used. (Open)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24

 

 

 

 

 

 

 

 

 

 

 

 

O

System reset signal output

 

 

SYSRST

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

25

 

 

 

 

 

 

 

 

 

 

 

O

Bus on signal output to the bus interface

 

 

 

BUSON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

26

 

KEYACK

I

Key acknowledge detection signal input

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

27

DAVN (NIL)

I

RDS data block sync detection signal input (AEP, UK model)/Connected to

ground. (US, Canadian model)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

28

 

 

 

 

 

BU_IN

I

Back up power supply detection signal input

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

29

 

 

 

 

 

SIRCS

I

Remote control signal input from the remote control receiver

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30

 

TUATT IN

I

ATT control signal input from tuner unit.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

31

 

 

 

 

 

NIL

I

Not used. (Connected to ground.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

32

 

 

 

 

 

NIH

I

Not used. (Connected to power supply.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

33

 

 

 

 

 

 

 

 

 

 

I

Microcomputer reset signal input from the reset IC

 

 

 

 

RESET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

34

 

 

 

I

Front panel with/without detection signal input “L”: panel with

 

NOSE SW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

35

 

 

 

 

 

BEEP

O

Beep signal output to the power amplifier

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

36

 

 

 

 

 

NCO

O

Not used. (Open)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

37

 

 

 

 

 

 

 

 

I

Test mode detection signal input

 

 

 

TESTIN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

38

 

 

 

 

 

 

 

 

I

Accessory power supply detection signal input

 

 

 

 

ACCIN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

39

 

 

 

 

 

NCO

O

Not used. (Open)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

40

 

 

TELATT

I

TEL ATT detection signal input

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

41

 

 

 

 

 

NIH

I

Fixed at “H”.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

42

 

 

 

BUSSO

O

Sony_Bus serial data output to the bus interface IC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

43

 

 

 

 

 

BUSSI

I

Sony_Bus serial data input from the bus interface IC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

44

 

BUSCKO

O

Sony_Bus serial clock output to the bus interface IC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

45

 

 

 

 

I2CSIO

I/O

I2C bus serial data input/output

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

46

 

 

 

 

 

NCO

O

Not used. (Open)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

47

 

 

I2CCKO

O

I2C bus serial clock output

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

48

 

 

 

 

 

NCO

O

Not used. (Open)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

49

 

 

 

 

 

NCO

O

Not used. (Open)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50

 

POW_ON

O

System power supply control signal output

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

51 – 66

 

 

 

 

 

NCO

O

Not used. (Open)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

67

 

 

 

 

 

ATT

O

System ATT control signal output

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

68

 

 

 

 

 

NCO

O

Not used. (Open)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18

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Contents Specifications NEWService Notes CDX-MP40Extension Cable and Service Position Diagrams Table of Contents GeneralDisassembly Exploded ViewsGeneral CDX-MP40 US, Canadian Model AEP, UK ModelConnections US, Canadian Model Connections AEP, UK Model CDX-MP40 CDX-MP40 Section Disassembly SUB Panel Assy CDCD Mechanism Block Main BoardHeat Sink Chassis T SUB AssyLever Section Servo BoardShaft Roller ASSY, Load SW Board Floating Block Assy Optical PICK-UP BlockCDX-MP40 Section Diagrams IC PIN DescriptionsClose IC5 CXD9684R-005 DSP Servo Board IC801 MN101C49KSJ System Control Main Board NCO Circuit Boards Location Block Diagram CD Section MainBlock Diagram Main Section Section aBlock Diagram Display Section Waveforms Servo BoardMain Board IC1 IC2 IC3 IC4 IC5 IC7Side B CN1 FB3 IC B/D IC B/D JW1 PJ601 C629 JR601 Q602 Semiconductor Location FMA3 FMB6 Schematic Diagram RELAY, KEY Section US, Canadian Model FMB5 Schematic Diagram RELAY, KEY Section AEP, UK Model IC Block Diagrams IC12 TC7SH08FU-TE85RIC401 BD3802F Main Board PassCDX-MP40 Section Exploded Views Chassis SectionDisplay PANEL, Liquid Crystal Front Panel Section56 X-3382-702-1 Panel ASSY, Front Back AEP,UK Screw +P 2X10 TYPE2 NON-SLITSCREW, Special 112101 A-3274-253-A Disc in SW BOARD, Complete 111 A-3274-698-A Servo BOARD, Complete155153 161 152 159 159 A-3307-422-A Chassis M Complete Assy203 CD Mechanism MG-393MC-121 207 208 209 211 210 201202 205 206 209Section Electrical Parts List CDX-MP40 Disc in SW Display SWITCH, Tactile with LED Source CDX-MP40 Display KEYKEY CDX-MP40 KEY Limit SW Load SW Main ConnectorCONNECTOR, FFC/FPC 6P Main BOARD, Complete US,CND Main BOARD, Complete AEP,UKCDX-MP40 Main Jumper Resistor Diode UDZS-TE-17-5.6BFERRITE, EMI SMD InductorUS,CND Carbon SwitchCarbon Metal OxideCDX-MP40 Main Relay Servo CDX-MP40 Servo 251252 253 254 255 256 257 258 Memo CDX-MP40 Revision History

CDX-MP40 specifications

The Sony CDX-MP40 is a versatile car audio receiver designed to enhance the in-car listening experience. Known for its combination of modern features and reliable performance, this model has gained popularity among music enthusiasts who value both functionality and sound quality.

At the core of the CDX-MP40 is its CD playback capability, allowing drivers to enjoy their favorite albums on the go. The device is compatible with CD-Rs and CD-RWs, ensuring a wide range of playback options. In addition to traditional CDs, the CDX-MP40 stands out with its MP3 playback capability, enabling users to load hundreds of tracks onto a single disc. This eliminates the clutter of multiple CDs, making music access more convenient during long drives.

One of the key features of the CDX-MP40 is its front auxiliary input, which allows for seamless connection of external devices such as smartphones and MP3 players. This connectivity expands the range of audio sources available to users and makes it easy to stream music from various devices. Moreover, the receiver offers an option for optional USB connectivity, providing even more versatility for music playback.

The CDX-MP40 also benefits from advanced technologies to improve sound quality. With 52 watts of peak power per channel, this unit delivers robust audio performance that can fill any car with rich sound. The built-in EQ (equalizer) presets allow users to customize their audio settings based on musical preferences, while the additional power output ensures that even at high volumes, the sound remains clear and undistorted.

Safety and usability are also prioritized in the design of the CDX-MP40. The user interface is straightforward, featuring a large, easy-to-read display and intuitive controls, making it user-friendly for drivers. The electronic skip protection feature minimizes playback interruptions, ensuring a smooth listening experience even on bumpy roads.

In summary, the Sony CDX-MP40 is a well-rounded car audio solution, equipped with essential features such as CD and MP3 playback, auxiliary input, and USB connectivity. With powerful audio performance and user-friendly controls, it caters to a wide array of audio preferences, making it an excellent choice for anyone looking to upgrade their in-car entertainment system. Its blend of modern technology and classic functions establishes the CDX-MP40 as a reliable option for car audio enthusiasts.
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